Shock absorbing skateboard truck assembly

Abstract

A shock absorbing skateboard truck assembly includes a resilient shock absorber member located between the assembly base of the assembly and the rest of the assembly for absorbing shocks encountered during use of the skateboard to which the shock absorbing skateboard truck assembly is connected. A shock absorbing element is spaced from the resilient shock absorber member at another truck assembly location.

What is claimed is:  
     
       1. A shock absorbing skateboard truck assembly comprising, in combination: 
       an assembly base for attachment to the underside of a skateboard;  
       a king pin projecting from said assembly base and having a threaded distal end;  
       an axle support member defining an axle support member opening, said king pin projecting through said axle support member opening;  
       first and second resilient pads encircling said king pin, said first and second resilient pads being spaced from one another and disposed at opposed sides of said axle support member;  
       pad retention means retaining said first and second resilient pads in position relative to said axle support member;  
       a king pin nut threadedly engaged with said king pin at the threaded distal end of said king pin;  
       a resilient shock absorber member positioned between said first and second resilient pads and said assembly base and between said pad retention means and said assembly base, said resilient shock absorber member defining a hole receiving said king pin, rotation of said king pin nut on said king pin changing the compressive forces applied to said resilient shock absorber member;  
       a double-ended bushing extending around said king pin and disposed within said first and second resilient pads, said bushing being axially slidably movable relative to said king pin selectively toward or away from said assembly base, said pad retention means including a flange radially extending outwardly from one of the ends of said bushing, said flange adjoining one of said resilient pads, the end of said bushing remote from said flange being a threaded end; and  
       a bushing nut threadedly engaged with the threaded end of said bushing, rotation of said bushing nut on said bushing varying the compressive forces applied to said resilient first and second pads to change the steering characteristics of said truck assembly.  
     
     
       2. The shock absorbing skateboard truck assembly according to  claim 1  wherein said flange defines a recess receiving the resilient pad adjoining said flange. 
     
     
       3. The shock absorbing skateboard truck assembly according to  claim 1  wherein said pad retention means additionally comprises a retention member disposed about the threaded end of said bushing and defining a recess for receiving the resilient pad not adjoining said flange. 
     
     
       4. The shock absorbing skateboard truck assembly according to  claim 1  wherein said bushing nut and said king pin nut are coaxial and adjacent to one another. 
     
     
       5. The shock absorbing skateboard truck assembly according to  claim 1  wherein said king pin defines an O-ring seat about the outer periphery thereof, said shock absorbing skateboard truck assembly additionally comprising an O-ring positioned in said O-ring seat and projecting outwardly from said king pin into engagement with said bushing. 
     
     
       6. The shock absorbing skateboard truck assembly according to claim additionally comprising a washer extending about said king pin and positioned between said bushing and said resilient shock absorber member. 
     
     
       7. The shock absorbing skateboard truck assembly according to  claim 1  wherein said assembly base defines an assembly base recess spaced from said king pin and wherein said axle support member includes an axle support member arm having a distal end positionable in said assembly base recess, said shock absorbing skateboard truck assembly additionally comprising a shock absorbing element located in said assembly base recess, said shock absorbing element defining a shock absorbing element recess receiving the distal end of said axle support member arm.